Half to hamilton g



(No Model.)

0. H. WEAVER.

PIPE WRENCH.

N0. 5116;,Z 49;- Patented Mar. 13,

UNITED STATES PATENT QFFICE.

CHARLES H. WEAVER, OF HORNELLSVILLE, NEW YORK, ASSIGNOR OF ONE- HALF TOHAMILTON G. PRESTON, OF SAME PLACE.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 516,249, dated March13, 1894.

Application filed July 10, 1893. Renewed February 6, 1894:- Serial No.499,303- (No model.)

To all whom it may concern:

Be it known that I, CHARLES H. WEAVER, a citizen of the United States,residing at Hernellsville,in the county of Steuben and State of NewYork, have invented certain new and useful Improvements inPipe-Wrenches, of which the following is a specification, referencebeing had therein to the accompanying drawings.

My invention relates to pipe wrenches, and has for its object to providea wrench which has a tendency to grip the pipe the tighter as more poweris applied to the handle thereof, and to provide a wrench of thischaracter with a spring operating on the jaws of the wrench in such amanner as to give the initial grip on the pipe before power is appliedto the wrench handle, and thus avoid atendency of the wrench to slipwhen the jaws are closed on the pipe.

In the accompanying drawings, Figure 1 represents my improved wrenchwith the jaws grasping a piece of pipe, and Fig. 2 represents the samewith the jaws closed. I

A denotes the handle of the wrench to one end of which, at a, is pivotedthe jaw-lever B provided with a gripping jaw b. I

C denotes the other jaw-lever provided with a gripping jaw c, the twolevers being pivotally attached together at c.

D is a lever pivoted at d to the handle A and jointed at d to the rearend of the jawlever O, the lever D being pressed upon at its endopposite that where it is pivoted to the jaw-lever O by a spring E whichis attached to the handle A. The spring E presses upon the end of theleverD in such a manner as to have a tendency to close the jaws of theof the wrench to grip the pipe with forceenough to turn it.

From the foregoing it will be apparent that I am enabled to providea-pipe wrench which is simple in construction, and efficient inoperation, and which can be used with a greater ease and conveniencethan other similar wrenches heretofore produced, for the reason that thetendency of the Wrench to slip on the pipe is greatly lessened orentirely avoided.

Having thus described my invention, I

claim and desire to secure by Letters Patent- The combination with thehandle A, of the j aw-lever B pivotally attached thereto and providedwith the jaw b, the jaw-lever O pivotally connected with the said jawlever B, and provided with the jaw c, the lever D pivoted to the saidhandle A and jointed to the said jaw-lever O, and the spring E attachedto the said handle A and arranged to press upon the said lever D in sucha manner as to have a tendency to force the jaws of the wrench towardeach other.

In testimony whereof I affix my signature in presence of two witnesses;

OHARLES H. WEAVER.

Witnesses:

HAMILTON G. PRESTON, J. ARTHUR NICHOLSON.

